Hey there,

IDA ICE is the best choice, no matter what type of building, which variable you want to analyze or what kind of components and controls you need.

Cheers

Daniel

------------------------------------------
DI Daniel Ruepp
daniel at ruepp.at
+43 650 22 18 161 (phone)
Sch?tzengartenstra?e 9
6890 Lustenau

AUSTRIA
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Von: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] Im Auftrag von Nicholas Caton via Bldg-sim
Gesendet: Montag, 5. M?rz 2018 19:25
An: Ibrahim NEYA
Cc: bldg-sim at lists.onebuilding.org
Betreff: Re: [Bldg-sim] building indoor temperature and humidity prediction

Hello Ibrahim,

If it?s an existing/built building, you?ll want to acquire a quantity of these to measure directly: http://www.onsetcomp.com/products/data-loggers/ux100-003. Very useful for objectively quantifying occupant comfort issues and operation/malfunctions of building or space-level humidity controls, which can then support energy savings/costs associated with correcting those kinds of issues.

If it?s a new building or else only on paper at the moment, any number of energy simulation software can report temperature and RH of airstreams at a system or zonal resolution. eQuest/doe2 is among them, however I?m inclined to suggest/request you to be more specific about your purpose and end-goals, supplemented with any existing building simulation experience/skillsets. eQuest comes with a definite learning curve before it?s outputs can be leveraged with confidence, and there might be software more purpose-built options appropriate to your task(s) at hand that I or others could suggest.

~Nick

Nick Caton, P.E., BEMP

Senior Energy Engineer
Regional Energy Engineering Manager

Energy and Sustainability Services
Schneider Electric

D 913.564.6361
M 785.410.3317
F 913.564.6380
E nicholas.caton at schneider-electric.com

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

WUFI is where I would head next also? but some cautionary advice to supplement:

Tom is correct to suggest WUFI (or in generic terms of the top of my head ?transient envelope dewpoint simulation?) is indeed a software/skillset that requires time investment to pick up and utilize with accuracy. Before pursuing this (not-inexpensive) software and analysis skillset, I would generally advise strangers to first grow comfortable with executing the procedure and fully understanding the limitations of ?normal? (steady-state) dewpoint analysis (re: Chapter 27 of 2009 ASHRAE Fundamentals).

Expending the time/effort for something like a proper WUFI analysis should follow being able to confidently assert a steady-state analysis will not do. I used to provide envelope dewpoint analysis as an independent service to architects and MEP consultants, and while I could have used WUFI for every analysis it would have been overkill for most situations.

All that said, Ibrahim if the only thing changing between the present and future state is the envelope construction, exterior weather conditions, and/or interior sensible/latent load profiles? then I think WUFI could be an appropriate software to pursue calibrating a model to your existing-state measurements (developing a latent and sensible load profile which responds similarly to the existing envelope and measurement period weather), and then using the calibrated WUFI model to predict interior conditions under different envelope, exterior weather conditions, or interior load profiles.

Best of luck!

~Nick

[cid:image001.png at 01D3B54A.F46D7DA0]
Nick Caton, P.E., BEMP
Senior Energy Engineer
Regional Energy Engineering Manager
Energy and Sustainability Services
Schneider Electric

D 913.564.6361
M 785.410.3317
F 913.564.6380
E nicholas.caton at schneider-electric.com

15200 Santa Fe Trail Drive
Suite 204
Lenexa, KS 66219
United States

[cid:image002.png at 01D3B54A.F46D7DA0]

Hi Ibrahim,

I don?t think I saw which modeling software you are currently using but you may be interested to know that EnergyPlus is able to do hygrothermal analysis, although the learning curve (a factor mentioned by Nick) with EnergyPlus may be no better than WUFI if you are not already familiar with it. DesignBuilder (which is an easy-to-use interface to the EnergyPlus engine) implemented the EnergyPlus HAMT method (and EMPD for simpler analysis) a while back and I understand that this can give very similar results to WUFI.

I believe the main difference is that WUFI allows a higher ?resolution? so the results are slightly more accurate when using the higher resolution in WUFI. Given all the other variables in a whole-building energy/comfort model my understanding is that the difference between the two results sets is negligible, however, if you are trying to get a perfect correlation between the material (under lab conditions for example) and the simulation results you?d probably need WUFI.

You can find more information on DesignBuilder?s HAMT capabilities here: http://www.designbuilder.co.uk/helpv5.2/#MoistureTransferComponent.htm?Highlight=hamt

I hope that helps,

Dave

David Cocking MSc CEng MCIBSE MASHRAE
Director I Tel: +44 (0)1453 755500 I david.cocking at designbuilder.co.uk

DesignBuilder Software Ltd, 1st Floor, Clarendon Court, 54-56 London Rd, Stroud, GL5 2AD
www.designbuilder.co.uk

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